Tài liệu biến tần INOVANCE MD280

MD280 User Manual

Preface

Preface
Thank you for purchasing the MD280 series AC drive developed by Shenzhen Inovance
Technology Co., Ltd.
The MD280 series AC drive is a general-purpose AC drive, which implements V/F control
on AC asynchronous motors. It is used to drive various automation production equipment of
different fields involving textile, paper-making, wiredrawing, machine tool, packing, food, fan
and pump. Featuring large startup torque and 8-speed running, it also supports closed-loop
process control and networking, and can be commissioned easily.
This manual describes the correct use of the MD280 series AC drive, including selection,
parameter setting, commissioning, maintenance & inspection. Read and understand the
manual before use and forward the manual to the end user.
Notes
•• The drawings in the manual are sometimes shown without covers or protective guards.
Remember to install the covers or protective guards as specified first, and then perform
operations in accordance with the instructions.
•• The drawings in the manual are shown for description only and may not match the product
you purchased.
•• The instructions are subject to change, without notice, due to product upgrade, specification
modification as well as efforts to increase the accuracy and convenience of the manual.
•• Contact our agents or customer service center if you have problems during the use.

-1-


Introduction

MD280 User Manual

Introduction
The basic configuration and functions of the MD280 are described in the following table.
•• 5 x DI (DI5 can be used for high-speed input)
•• 2 x AI (AI2 for voltage or current input, or operation panel
potentiometer setting)
Input/Output terminal

•• 2 x DO
•• 1 x AO (voltage or current output, or frequency or DO
output through FM)
•• 1 x relay output

Control mode

V/F

Analog setting

Straight-line mode

Multi-speed

8 speeds

Simple PLC

8-period scheduled running

Swing frequency and
fixed length control

Supported

Communication function

RS485 communication port

PID control

Supported

V/F mode

Straight-line V/F, multi-point V/F, square V/F

■■ Product Checking
Upon unpacking, check:
•

Whether the nameplate model and AC drive ratings are consistent with your order. The
box contains the AC drive, certificate of conformity, user manual and warranty card.

•

Whether the AC drive is damaged during transportation. If you find any omission or
damage, contact Inovance or your supplier immediately.

■■ First-time Use

For the users who use this product for the first time, read the manual carefully. If in doubt
concerning any function or performance, contact the technical support personnel of
Inovance to ensure correct use.
■■ Standard Compliant
The MD280 series AC drive complies with the following standards:
•

IEC/EN 61800-5-1: 2003 Speed Electric Drive Systems Safety Requirements

•

IEC/EN 61800-3: 2004 Speed Electric Drive System; Part 3: EMC Standard and
Specified Test Method (the MD280 series AC drive complies with the requirements of
standard IEC/EN 61800-3 on the condition of correct installation and use by following
the instructions in chapter 7)

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MD280 User Manual

Introduction

■■ Connection to Peripheral Devices
Use within the allowable power
supply specification of the AC drive .

Three-phase AC
power supply
Moulded case circuit

breaker (MCCB) or earth
leakage circuit breaker
(ELCB)

Select a proper circuit breaker to
resist large in-rush current that flows
into the AC drive at power-on.
To guarantee safety, use an
electromagnetic contactor. Do not use it to
start or stop the AC drive because such
operation reduces the service life of the
AC drive.

Electromagnetic
contactor

Suppress the high order harmonic
to improve the power factor.

AC input
reactor

Noise filter
on input side
Reduce the electromagnetic
interference on the input side.

MD280

RS T

Reliably ground the motor and the
AC drive to prevent electric shock.

U V W

Ground

Braking unit

Output reactor

Braking resistor

+
-

BR
P(+)

Motor

Ground

•

Do not install the capacitor or surge suppressor on the output side of the AC drive.
Otherwise, it may cause faults to the AC drive or damage to the capacitor and surge
suppressor.

•

Inputs/Outputs (main circuit) of the AC drive contain harmonics, which may interfere
with the communication device connected to the AC drive. Therefore, install an antiinterference filter to minimize the interference.

•

For more details on peripheral devices, refer to section 3.2.1.

-3-


Contents
Preface ...................................................................................................................1
Introduction .............................................................................................................2
Chapter 1 Safety Information and Precautions.......................................................8
1.1 Safety Information ............................................................................................................8
1.2 General Precautions .......................................................................................................10

Chapter 2 Product Information .............................................................................16
2.1 Designation Rules and Nameplate of the MD280 ..........................................................16
2.2 MD280 Models and Technical Data ................................................................................16
2.3 Technical Specifications .................................................................................................17
2.4 Physical Appearance and Overall Dimensions of the MD280 ........................................20
2.5 Optional Parts .................................................................................................................24
2.6 Maintenance ...................................................................................................................24
2.7 Warranty ........................................................................................................................26
2.8 Braking Component Selection Guideline ........................................................................26

Chapter 3 Mechanical and Electrical Installation ..................................................30

3.1 Mechanical Installation ...................................................................................................30
3.2 Electrical Installation .......................................................................................................36

Chapter 4 Operation and Display .........................................................................52
4.1 Operation Panel..............................................................................................................52
4.2 Viewing and Modifying Function Codes .........................................................................54
4.3 Viewing Status Parameters ............................................................................................55
4.4 Starting or Stopping the AC Drive...................................................................................56
4.5 JOG Running ..................................................................................................................60
4.6 Setting the Running Frequency ......................................................................................61
4.7 Setting and Auto-tuning of Motor Parameters ................................................................69
4.8 Use of DI Terminals ........................................................................................................70
4.9 Use of DO Terminals ......................................................................................................70
4.10 Use of AI Terminals.......................................................................................................71
4.11 Use of AO Terminals .....................................................................................................72
4.12 Use of Serial Communication .......................................................................................72


4.13 Password Setting..........................................................................................................73
4.14 Default Initialization ......................................................................................................73

Chapter 5 Function Code Table ............................................................................76
Chapter 6 Description of Function Codes.............................................................98
Group F0: Basic Parameters ................................................................................................98
Group F1: Motor Parameters and V/F Control Parameters ................................................105
Group F2: Input Terminals ..................................................................................................109
Group F3: Output Terminals ............................................................................................... 118
Group F4: Start/Stop Control ..............................................................................................122
Group F5: Auxiliary Functions ............................................................................................127
Group F6: Process Control PID Function ...........................................................................134

Group F7: Swing Frequency, Fixed Length and Count ......................................................137
Group F8: Multi-Reference and Simple PLC Function .......................................................141
Group F9: Reserved ...........................................................................................................144
Group FA: Communication Parameters..............................................................................144
Group FB: Overload and Protection ...................................................................................144
Group FC: Motor 2 Parameters ..........................................................................................149
Group FD: AI Correction .....................................................................................................150
Group FF: Factory Parameters (Reserved) ........................................................................151
Group FP: User Password..................................................................................................151

Chapter 7 EMC ...................................................................................................154
7.1 Definition.......................................................................................................................154
7.2 Introduction to EMC Standard ......................................................................................154
7.3 EMC Guideline .............................................................................................................154

Chapter 8 Troubleshooting .................................................................................158
8.1 Faults and Solutions .....................................................................................................158
8.2 Common Faults and Solutions .....................................................................................162



1
Safety Information and Precautions


Safety Information and Precautions

MD280 User Manual

Chapter 1 Safety Information and Precautions

In this manual, the notices are graded based on the degree of danger:
•

DANGER indicates that failure to comply with the notice will result in severe personal
injury or even death.

•

WARNING indicates that failure to comply with the notice will result in personal injury
or property damage.

Read this chapter carefully so that you have a thorough understanding, and perform all
operations such as installation, commissioning or maintenance by following the notices in
this chapter. Inovance will assume no liability or responsibility for any injury or loss caused
by improper operation.

1.1 Safety Information
Use Stage

Safety
Grade

WARNING

Before
installation

Precautions
•• Do not install the equipment if you find water seepage,
component missing or damage upon unpacking.

•• Do not install the equipment if the packing list does not conform
to the product you received.
•• Handle the equipment with care during transportation to prevent
damage to the equipment.

DANGER

•• Do not use the equipment if any component is damaged or missing.
Failure to comply will result in personal injury.

•• Do not touch the components with your hands. Failure to comply
will result in static electricity damage.

During
installation

•• Install the equipment on incombustible objects such as metal,
and keep it away from combustible materials. Failure to comply
may result in a fire.
DANGER
•• Do not loosen the fixed screws of the components, especially
the screws with red mark.
•• Do not drop wire end or screw into the AC drive. Failure to
comply will result in damage to the AC drive.
WARNING

•• Install the AC drive in places free of vibration and direct sunlight.
•• When two AC drives are laid in the same cabinet, arrange the
installation positions properly to ensure the good cooling effect.

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MD280 User Manual

Use Stage

Safety Information and Precautions

Safety
Grade

Precautions
•• Wiring must be performed only by qualified personnel under
instructions described in this manual. Failure to comply may
result in unexpected accidents.

DANGER

•• A circuit breaker must be used to isolate the power supply and
the AC drive. Failure to comply may result in a fire.
•• Ensure that the power supply is cut off before wiring. Failure to
comply may result in electric shock.
•• Tie the AC drive to ground properly according to the
requirements. Failure to comply may result in electric shock.
ever connect the power cables to the output terminals (U,
•• N
V, W) of the AC drive. Pay attention to the marks of the wiring
terminals and ensure correct wiring. Failure to comply will result
in damage to the AC drive.

At wiring

WARNING

•• Never connect the braking resistor between the DC bus terminals
(+) and (-). Failure to comply may result in a fire.

nsure that all wiring complies with the EMC requirements
•• E
and local safety standard. Use wire sizes recommended in the
manual. Failure to comply may result in accidents.
•• Use a shielded cable for the encoder, and ensure that the
shielding layer is reliably grounded.
•• Check that the following requirements are met:

WARNING

Before
power-on

–– The voltage class of the power supply is consistent with the
rated voltage class of the AC drive.
–– The input terminals (R, S, T) and output terminals (U, V, W)
are properly connected.
–– No short-circuit exists in the peripheral circuit.
–– The wiring is secured.
Failure to comply will result in damage to the AC drive
o not perform the voltage resistance test on any part of the AC
•• D

drive because such test has been done in the factory. Failure to
comply will result in accidents.
over the AC drive properly before power-on to prevent electric
•• C
shock.

DANGER •• All peripheral devices must be connected properly under the

instructions described in this manual. Failure to comply will
result in accidents.

•• Do not open the AC drive's cover after power-on. Failure to
comply may result in electric shock.
After
power-on

DANGER

•• Do not touch any I/O terminal of the AC drive. Failure to comply
may result in electric shock.
•• The AC drive automatically performs safety detection on the
external strong power circuit immediately after power-on. Do not
touch the U, V, W terminals of the AC drive or wiring terminals
of the motor. Failure to comply may result in electric shock.

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Safety Information and Precautions

Use Stage
After
power-on

MD280 User Manual

Safety
Grade

DANGER

Precautions
•• Do not touch the rotating part of the motor during the motor
auto-tuning or running. Failure to comply will result in accidents.
o not change the default settings of the AC drive. Failure to
•• D
comply will result in damage to the AC drive.
•• Do not touch the fan or the discharging resistor to check the
temperature. Otherwise, you may get burnt.

DANGER •• Signal detection must be performed only by qualified personnel

during operation. Failure to comply will result in personal injury
or equipment damage.

During
running
WARNING

void objects falling into the AC drive when it is running. Failure

•• A
to comply will result in damage to the AC drive.
o not start/stop the AC drive by turning the contactor ON/OFF.
•• D
Failure to comply will result in damage to the AC drive.
epair or maintenance of the AC drive can be performed only
•• R
by qualified personnel. Failure to comply will result in personal
injury or damage to the AC drive.
•• Do not repair or maintain the AC drive at power-on. Failure to
comply will result in electric shock.

During
maintenance

DANGER

•• Repair or maintain the AC drive only ten minutes after the AC
drive is powered off. Otherwise, the residual voltage in the
capacitor will result in personal injury.
nsure that the AC drive is disconnected from all power supplies
•• E
before starting repair or maintenance on the AC drive.
et and check the parameters again after the AC drive is
•• S
replaced.

1.2 General Precautions
1)

Requirement on residual current device (RCD)
The AC drive generates high leakage current during running, which flows through the
protective earthing (PE) conductor. Thus install a type-B RCD at primary side of the
power supply. When selecting the RCD, you should consider the transient and steadystate leakage current to ground that may be generated at startup and during running of
the AC drive. You can select a specialized RCD with the function of suppressing high
harmonics or a general-purpose RCD with relatively large residual current.

2)

High leakage current warning
The AC drive generates high leakage current during running, which flows through the
PE conductor. Earth connection must be done before connection of power supply.
Earthing shall comply with local regulations and related IEC standards.

3)

Motor insulation test
Perform the insulation test when the motor is used for the first time, or when it is
reused after being stored for a long time, or in a regular check-up, in order to prevent
the poor insulation of motor windings from damaging the AC drive. The motor must be
disconnected from the AC drive during the insulation test. A 500-V mega-Ohm meter is

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MD280 User Manual

Safety Information and Precautions

recommended for the test. The insulation resistance must not be less than 5 MΩ.

Input terminals U V W
of the motor

Megger

Ground

4)

Thermal protection of motor
If the rated capacity of the motor selected does not match that of the AC drive,
especially when the AC drive's rated power is greater than the motor's, adjust the motor
protection parameters on the operation panel of the AC drive or install a thermal relay
in the motor circuit for protection.

5)

Running at over 50 Hz
The AC drive provides frequency output of 0−300 Hz. If the AC drive is required to run
at over 50 Hz, consider the capacity of the machine.

6)

Vibration of mechanical device
The AC drive may encounter the mechanical resonance point at some output
frequencies, which can be avoided by setting the skip frequency.

7)

Motor heat and noise

The output of the AC drive is pulse width modulation (PWM) wave with certain
harmonics, and therefore, the motor temperature, noise, and vibration are slightly
greater than when the AC drive runs at power frequency (50 Hz).

8)

Voltage-sensitive device or capacitor on output side of the AC drive
Do not install the capacitor for improving power factor or lightning protection voltagesensitive resistor on the output side of the AC drive because the output of the AC drive
is PWM wave. Otherwise, the AC drive may suffer transient overcurrent or even be
damaged.
AC
drive

U V W

M

9)

Capacitor or
voltage-sensitive
resistor

Contactor at the I/O terminal of the AC drive
When a contactor is installed between the input side of the AC drive and the power
supply, the AC drive must not be started or stopped by switching the contactor on or
off. If the AC drive has to be operated by the contactor, ensure that the time interval

- 11 -

Safety Information and Precautions

MD280 User Manual

between switching is at least one hour since frequent charge and discharge will shorten
the service life of the capacitor inside the AC drive.
When a contactor is installed between the output side of the AC drive and the motor,
do not turn off the contactor when the AC drive is active. Otherwise, modules inside the
AC drive may be damaged.
Contactor KM or
other switches

Contactor KM
380 VAC
50 /60 Hz

R
S
T

U

AC drive

Do not start /stop the AC drive by switching
the contactor on /off. If the AC drive has to
be operated by the contactor , ensure that
the time interval is at least one hour .

M

V
W

Turn on /off the contactor when
the AC drive has no output .
Otherwise, modules inside the
AC drive may be damaged .

10) When external voltage is out of rated voltage range
The AC drive must not be used outside the allowable voltage range specified in this
manual. Otherwise, the AC drive's components may be damaged. If required, use a
corresponding voltage step-up or step-down device.
11) Prohibition of three-phase input changed into two-phase input
Do not change the three-phase input of the AC drive into two-phase input. Otherwise, a
fault will result or the AC drive will be damaged.
12) Surge suppressor
The AC drive has a built-in voltage dependent resistor (VDR) for suppressing the surge
voltage generated when the inductive loads (electromagnetic contactor, electromagnetic
relay, solenoid valve, electromagnetic coil and electromagnetic brake) around the AC
drive are switched on or off. If the inductive loads generate a very high surge voltage,
use a surge suppressor for the inductive load or also use a diode.
Note

Do not connect the surge suppressor on the output side of the AC.
13) Altitude and de-rating
In places where the altitude is above 1000 m and the cooling effect reduces due to thin
air, it is necessary to de-rate the AC drive. Contact Inovance for technical support.
14) Some special usages

If wiring that is not described in this manual such as common DC bus is applied,
contact the agent or Inovance for technical support.
15) Disposal
The electrolytic capacitors on the main circuits and PCB may explode when they are
burnt. Poisonous gas is generated when the plastic parts are burnt. Treat them as
ordinary industrial waste.

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MD280 User Manual

Safety Information and Precautions

16) Adaptable Motor
•

The standard adaptable motor is adaptable four-pole squirrel-cage asynchronous
induction motor or PMSM. For other types of motor, select a proper AC drive
according to the rated motor current.

•

The cooling fan and rotor shaft of non-variable-frequency motor are coaxial, which
results in reduced cooling effect when the rotational speed declines. If variable
speed is required, add a more powerful fan or replace it with variable-frequency
motor in applications where the motor overheats easily.

•

The standard parameters of the adaptable motor have been configured inside the
AC drive. It is still necessary to perform motor auto-tuning or modify the default
values based on actual conditions. Otherwise, the running result and protection
performance will be affected.

•

The AC drive may alarm or even be damaged when short-circuit exists on cables
or inside the motor. Therefore, perform insulation short-circuit test when the motor
and cables are newly installed or during routine maintenance. During the test,
make sure that the AC drive is disconnected from the tested parts.

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Safety Information and Precautions

MD280 User Manual

- 14 -


2
Product Information


Product Information

MD280 User Manual

Chapter 2 Product Information
2.1 Designation Rules and Nameplate of the MD280
Figure 2-1 Designation rules and nameplate of the MD280
MD280N

T 7.5G B

/

11P

AC drive series
Mark

Voltage Class

S
T

Single-phase 220 V
Three-phase 380 V

B
Braking unit
Blank No
B
Yes

Braking unit
Blank No

B
Yes

11 kW, type P

7.5 kW, type G

Mapping relationship
Mark

0.4

0.7

……

400

450

Motor power (kW)

0.4

0.75

……

400

450

Nameplate
Nameplate

MODEL:

AC drive model
Power class

MD280NT2.2GB

Rated input

POWER: 2.2kW
INPUT:
3PH AC380V 5.8A 50/60Hz

Rated output

OUTPUT: 3PH AC380V 5.1A 0~630Hz
S/N:

Manufacture SN

010160081B900182

Shenzhen Inovance Technology Co.,Ltd.

2.2 MD280 Models and Technical Data

Table 2-1 MD280 models and technical data
MD280 Model

Input Voltage

MD280NS0.4GB
MD280NS0.7 GB
MD280NS1.5 GB

Single-phase
220 V, range:
-15% to 20%

Power
Input
Capacity
Current (A)
(kVA)

Output
Current (A)

Motor
Power (kW)

1.0

5.4

2.3

0.4

1.5

8.2

4.0

0.75
1.5

3.0

14.2

7.0

MD280NS2.2 GB

4.0

23.0

9.6

2.2

MD280NT0.7 GB

1.5

3.4

2.1

0.75

MD280NT1.5 GB

3.0

5.0

3.8

1.5

MD280NT2.2 GB

4.0

5.8

5.1

2.2

5.9

14.6

9.0/13.0

3.7/5.5

8.9

20.5

13.0/17.0

5.5/7.5

MD280NT7.5GB/11PB

11.0

26.0

17.0/25.0

7.5/11

MD280NT11GB/15PB

17.0

35.0

25.0/32.0

11.0/15

MD280NT3.7GB/5.5PB
MD280NT5.5GB/7.5PB

Three-phase
380 V, range:
-15% to 20%

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MD280 User Manual

Product Information

MD280 Model

Input Voltage

Power
Input
Capacity
Current (A)
(kVA)

Output
Current (A)

Motor
Power (kW)

MD280NT15GB/18.5PB

21.0

38.5

32.0/37.0

15.0/18.5

MD280NT18.5G/22P

30.0

46.5

37.0/45.0

18.5/22

MD280NT22G/30P

40.0

62.0

45.0/60.0

22/30

MD280NT30G/37P

57.0

76.0

60.0/75.0

30/37

MD280NT37G/45P

69.0

92.0

75.0/91.0

37/45

MD280NT45G/55P

85.0

113.0

91.0/112.0

45/55

MD280NT55G/75P

114.0

157.0

112.0/150.0

55/75

MD280NT75G/90P

134.0

180.0

150.0/176.0

75/90

160.0

214.0

176.0/210.0

90/110

192.0

256.0

210.0/253.0

110/132

231.0

307.0

253.0/304.0

132/160

MD280NT160G/200P

250.0

385.0

304.0/377.0

160/200

MD280NT200G/220P

280.0

430.0

377.0/426.0

200/220

MD280NT220G/250P

355.0

468.0

426.0/465.0

220/250

MD280NT250G/280P

396.0

525.0

465.0/520.0

250/280

MD280NT280G/315P

445.0

590.0

520.0/585.0

280/315

MD280NT315G/355P

500.0

665.0

585.0/650.0

315/355

MD280NT355G/400P

565.0

785.0

650.0/725.0

355/400

MD280NT400G/450P

630.0

883.0

752.0/820.0

400/450

MD280NT90G/110P
MD280NT110G/132P
MD280NT132G/160P

Three-phase
380 V, range:
-15% to 20%

2.3 Technical Specifications
Table 2-2 Technical specifications of the MD280
Item
Maximum
frequency

Specifications
630 Hz
0.5–16 kHz

Standard
functions

Carrier frequency

The carrier frequency is automatically adjusted based on
the load features.

Input frequency
resolution

Digital setting: 0.01 Hz

Control mode

Voltage/Frequency (V/F) control

Startup torque

150%

Speed range

1:50

Analog setting: maximum frequency x 0.025%

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Product Information

MD280 User Manual

Item
Speed stability
accuracy
Overload capacity
Torque boost

Specifications
±1%
•• G type: 60s for 150% of the rated current
•• P type: 60s for 130% of the rated current
•• Fixed boost
•• Customized boost 0.1%–30.0%
•• Straight-line V/F curve

V/F curve

•• Multi-point V/F curve
•• Square V/F curve
•• Straight-line ramp

Ramp mode

Standard
functions

•• S-curve ramp
Two groups of acceleration/deceleration time with the range
of 0.00–300.0s (m)
DC braking frequency: 0.00 Hz to maximum frequency

DC braking

Braking time: 0.0–36.0s
Braking action current value: 0.0%–100.0%

JOG control

JOG frequency range: 0.00 Hz to maximum frequency
JOG acceleration/deceleration time: 0.0–300.0s

Simple PLC,
multi-speed
running

It implements up to 8 speeds via the simple PLC function or
combination of DI terminal states.

Built-in PID

It implements the closed-loop process control system
easily.

Auto voltage
regulation (AVR)

It can keep constant output voltage automatically when the
mains voltage changes.

Overcurrent stall
control

The current is limited automatically during the running so
as to avoid frequent tripping due to overcurrent.

Rapid current limit

It decreases the overcurrent faults to the minimum and
ensures normal running of the AC drive.

Peripheral device
The AC drive performs safety check such as grounding and
safety check at
short-circuit on peripheral devices at power-on.
power-on

Individualized
functions

Common DC bus

Multiple AC drives share the DC bus.

MF.K key

This key can be used for command source switchover,
forward/reverse running selection, and jog running
selection.

Textile swing
frequency control

Control of multiple triangular wave frequencies is
supported.

Fixed length
control

The fixed length control is supported.

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MD280 User Manual

Product Information

Item

Specifications
•• Operation panel control

Running
command source

•• Terminal control
•• Communication control
You can perform switchover between these sources in
various ways.

There are a total of eight frequency sources, including

digital setting, analog voltage setting, analog current
Frequency source
setting, pulse setting, multi-speed, PLC, PID and
communication setting.
RUN

5 x DI, one of which supports high-speed pulse input
Input terminal

2 x AI, AI1 supporting 0–10 V voltage input and AI2
supporting 0–10 V voltage input or 4–20 mA current input
(or operation panel potentiometer input through jumper
selection)
2 x DO

Output terminal

Display and
operation on
the operation
panel

Environment

Environment

1 x relay output
1 x AO that supports 0–20 mA current output or 0–10 V
voltage output, to output the set frequency and running
frequency (FM can also be used for AO output)

LED display

It displays the parameters and monitored state of the AC
drive.

Protection
function

Motor short-circuit detection at power-on, input/output
phase loss protection, overcurrent protection, overvoltage
protection, undervoltage protection, overheat protection
and overload protection

Optional parts

External operation panel (with or without the potentiometer),
braking components, external operation panel cable

Installation
location

Indoor, free from direct sunlight, dust, corrosive gas,
combustible gas, oil smoke, vapour, drip or salt.

Altitude

Lower than 1000 m (de-rated if higher than 1000 m)

Ambient

temperature

-10°C to +40°C (de-rated if the ambient temperature is
between 40°C and 50°C

Humidity

Less than 95%RH, without condensing

Vibration

Less than 5.9 m/s2 (0.6 g)

Storage
temperature

-20°C to +60°C

IP level

IP20

Pollution degree

PD2

Power distribution
TN , TT
system

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Product Information

MD280 User Manual

2.4 Physical Appearance and Overall Dimensions of the MD280
2.4.1 Product Appearance and Mounting Dimensions of the MD280
Figure 2-2 Physical appearance and overall dimensions of the MD280

(MD280NS0.4GB to MD280NT15GB/18.5PB)
W
A

B H1
H

D

(MD280NT18.5G/22P to MD280NT400G/450P)

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MD280 User Manual

Product Information

Table 2-3 Physical dimensions and mounting dimensions of the MD280

MD280 Model

Mounting
Hole (mm)

Physical Dimensions
(mm)

Mounting Hole
Diameter (mm)

Weight
(kg)

A

B

H

H1

W

D

113

172

186

-

125

164

Ø5.0

1.1

148

236

248

-

160

183

Ø5.0

2.5

190

305

322

-

208

192

Ø6

6.5

235

447

432

463

285

228

Ø6.5

20

260

580

549

600

385

265

Ø10

32

343

678

660

700

473

307

Ø10

47

449

903

880

930

579

380

Ø10

90

420

1030

983

1060

650

377

Ø12

130

520

1300 1203 1358

800

400

Ø16

200

MD280NS0.4GB
MD280NS0.7GB
MD280NS1.5GB
MD320NS2.2GB
MD280NT0.7GB
MD280NT1.5GB
MD280NT2.2GB
MD280NT3.7GB
MD280NT5.5GB/7.5PB
MD280NT7.5GB/11PB
MD280NT11GB/15PB
MD280NT15GB/18.5PB
MD280NT18.5G/22P
MD280NT22G/30P

MD280NT30G/37P
MD280NT37G/45P
MD280NT45G/55P
MD280NT55G/75P
MD280NT75G/90P
MD280NT90G/110P
MD280NT110G/132P
MD280NT132G/160P
MD280NT200G/220P
MD280NT220G/250P
MD280NT250G/280P
MD280NT280G/315P
MD280NT315G/355P
MD280NT355G/400P
MD280NT400G/450P

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Product Information

MD280 User Manual

2.4.2 Physical Dimensions and Mounting Dimensions of the External Operation Panel
Figure 2-3 Physical dimensions of the external operation panel
76.0

27 .0
15.0

54.0

10.0
Crystal
joint

116.0
104.0

95.0

Ø3.5

73.5

Figure 2-4 Mounting hole dimensions of the external operation panel

99.30
95.00

73.50
63.75

4.70
9.75

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Φ4.00/typ2

MD280 User Manual

Product Information

2.4.3 Mounting Dimensions of the External DC Reactor
Figure 2-5 Mounting dimensions of external DC reactor

E

B

F

A
C

D

G

Table 2-4 Adaptable DC reactor and mounting dimensions

AC Drive Model

A

B

C

D

E

F

G

Diameter of
the Hole for Adaptable
Mounting
Connecting Reactor
Hole
Copper
Model
Busbar

MD280NT75G/90P

160 190 125 161 192 255 195

10 x 15

Ø12

DCL-0200

MD280NT90G/110P,
MD280NT110G/132P

160 190 125 161 192 255 195

10 x 15

Ø12

DCL-0250

MD280NT132G/160P,
160 190 125 161 192 255 195
MD280NT160G/200P

10 x 15

Ø12

DCL-0360

MD280NT200G/220P,
190 230
MD280NT220G/250P

93

128 250 325 200

13 x 18

Ø15

DCL-0600

MD280NT250G/280P,
190 230
MD280NT280G/315P

93

128 250 325 200

13 x 18

Ø15

DCL-0700

MD280NT315G/355P,
MD280NT355G/400P, 224 250 135 165 260 335 235
MD280NT400G/450P

12 x 20

Ø14

DCL-1000

Note

Customized models can be provided for special requirements.

The MD280 AC drives of 75 kW and above are configured with an external DC reactor. The
DC reactor is packed in separate wooden box for delivery.

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Product Information

MD280 User Manual

When installing the DC reactor, remove the shorting copper busbar between the main circuit
connection terminals P and +. Then connect the DC reactor between terminals P and +
(no polarity requirement). The copper busbar is not used any longer after the installation is
complete.

2.5 Optional Parts
If any optional part is required, specify it in your order.
Table 2-5 Optional parts for the MD280
Name

Model

Internal braking
unit

-

Function
The MD280 of 15GB/18.5PB or

below contains the internal braking
unit in the standard congfiguration
The built-in braking unit is optional for
the MD280 of

Remarks

-

18.5G/22P to 30G/37P.
Mulitple external
braking units are
connected in
parallel for 55G/75P
or above.

External braking
unit

MDBUN

The MD280 of 37G/45P or above
needs to be configured with an
external braking unit.

External LED
operation panel
(without the
potentiometer)

MDKE2

The external LED operation panel
provides the same functions as the
operation panel on the AC drive.

External LED
operation
panel (with the
potentiometer)

MD28KE2

The external LED operation panel
provides the same functions as the
operation panel on the AC drive.

The potentiometer
is used for AI2
input.

Extension cable

MDCAB

MDCAB is a standard 8-core network
cable used as the external cable for
the external operation panel.

Length: 3 m

-

2.6 Maintenance
2.6.1 Routine Maintenance
Ambient temperature, humidity, dust and vibration will cause the aging of the components
inside the AC drive, which may cause potential faults or reduce the service life of the AC
drive. Therefore, it is necessary to carry out routine and periodic maintenance.

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